6757420909 has 2 divisors, whose sum is σ = 6757420910. Its totient is φ = 6757420908.

The previous prime is 6757420849. The next prime is 6757420919. The reversal of 6757420909 is 9090247576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4641696900 + 2115724009 = 68130^2 + 45997^2 .

It is a cyclic number.

It is not a de Polignac number, because 6757420909 - 2¹¹ = 6757418861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6757420919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3378710454 + 3378710455.

It is an arithmetic number, because the mean of its divisors is an integer number (3378710455).

Almost surely, 2^6757420909 is an apocalyptic number.

It is an amenable number.

6757420909 is a deficient number, since it is larger than the sum of its proper divisors (1).

6757420909 is an equidigital number, since it uses as much as digits as its factorization.

6757420909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 952560, while the sum is 49.

The square root of 6757420909 is about 82203.5334337886. The cubic root of 6757420909 is about 1890.5738959677.

The spelling of 6757420909 in words is "six billion, seven hundred fifty-seven million, four hundred twenty thousand, nine hundred nine".